5 Types of Birds at the Birdfeeder

I’ve had a birdfeeder (I bought this one) for 5 years now. I’ve now seen the same patterns and species for several years in a row. There are so many more species than I ever thought I’d see. And I’ve definitely started to stereotype them and be prepared for how they consume food.
Couples
Cardinals, Titmouses (titmice?), and Bluebirds all show up as couples. It’s really funny because it’s like they are on a date to a fancy restaurant. The males all fly in to make sure it’s legit and safe while the female waits in a high branch. Then the female will come in, eat a bit, then fly away. These are all the birds I think I’ll get when I set out seed.
Sneakers
Nuthatches, Downy Woodpeckers, Chickadees, Wrens are all small, skittish guys. They show up often, but they never stay to eat. They grab and go – almost sneaking away with seed. But they are really funny and interesting to watch.
Munchers
Finches, Doves, and Blackbirds are all just insane. They stay and eat seed. But they only eat probably half the seed they consume. They mostly spill and drop all the seed. They are great, but I’ve come to dread them. They’ll all just sit and sit and sit for so long – oblivious to any threat giving all the seed to the squirrels on the ground (and making a mess that I have to clean up to prevent disease).
Stealers
Red-bellied Woodpeckers and Blue Jays are the beautiful big guys who are just light enough to get seed but big enough to drive away anyone else at the feeder. They keep the Munchers in check but also drive away the Couples.